I have a Jenkins server, which rotates nodes as the build traffic increases. I am trying to run integration tests with a project, and it requires me to have a certificate generated by keytool to co
Tag: How to
How do I copy the architecture and some data from SQL Server to another?
My product uses SQL Server database-each client has its own deployment instance on its own intranet. The db has about 200 tables. Most of them are only a few Row configuration table, but there are
How to use more complex type inheritance in Julia
I am trying to use the regular type Any in the following functions:
function f(arr::Array{Tuple{ASCIIString , Any},1})
arr[1]
end It applies to
f([(“a “,1), (“b”,”x”)]) But in
f(
Message-Queue – How do I understand the role of queues in a distributed system?
I’m trying to understand what is the use case of queues in a distributed system.
And how does it scale and how does it ensure that it is not a single point of failure in the system?
Any dire
How to configure distributed cache in grails (do not use Terracota)
I want to deploy my application (Grails 1.3.5) in two or more tomcats (7.0). I managed to do it without problems, but now I want to use RMI configuration My cache (ehcache).
What I have done
How to retrieve SQL variables from CFQuery?
I run it in my cfquery.
SET @rID = (SELECT TOP 1 roleid
FROM Roles
WHERE RoleName = @rName AND appid = @appID
ORDER BY Created DESC); Is it possible to retrieve @rID without having to run
Performance – How to vectorize many ranked first external products?
Can the following loop be vectorized? Each iteration in the loop forms an outer product, then symmetric and store the result as a column in a matrix. Expect m to be large (e.g., 1e4) and s to be sm
How to cluster embedded Cassandra instances?
I wrote a small application to start an embedded instance of Cassandra 1.2.
I am trying to run 3 instances of this application in Create a cluster of 3 embedded instances locally. Everyone lo
How to handle ASP.NET application variables in load balancing web farms
I am moving a site from a single server to a server farm, which consists of three web servers behind a load balancer. It seems easy to handle session management-just in Load Balancer The above make
How to use aggregates with list names
How do I summarize the aggregation in a function by passing a list of conditions and values?
# This works fine:
x <- data.frame(cond1 = sample(letters[1:3], 500, replace=TRUE) ,
cond2 = sam